I want to be worked on next in cathedral? (4)
I believe the answer is:
dome
'next in cathedral?' is the definition.
'dome' can be an answer for 'cathedral?' (I have seen 'Old cathedral' mean 'dome' so perhaps 'cathedral' could also mean 'dome'). I'm unsure of the 'next in' bit.
'i want to be worked on' is the wordplay.
'i' becomes 'a'.
'want' is a deletion indicator.
'to be' becomes 'am'.
'worked' becomes 'doe' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'on' indicates putting letters inside (as in clothing 'on' a person).
'am' with 'a' taken away is 'm'.
'm' placed within 'doe' is 'DOME'.
Can you help me to learn more?
(Other definitions for dome that I've seen before include "Cupola - millennium building" , "Old cathedral" , "Curved roof" , "Head" , "millennium feature" .)